A Jefferson man was arrested on a weapons charge after authorities said he went to a Jefferson Parish probation building with a pistol strapped to his ankle.

Herbert Jenssen, 70, tried clearing the security check point at the Liberto Building at 802 2nd Street in Gretna, but kept setting off the alarm, an arrest report says. A deputy patted him down and found the pistol, the report says.

Jenssen told officers he forgot to leave his gun in his car.

Jenssen was booked into the Jefferson Parish Correctional Center on Wednesday (Sept. 3) after being arrested on the spot.

It is unclear why Jenssen was going to the building, but court records show that he was convicted last month of resisting an officer and obstructing public passages for which he received six months of probation.

The 24th Judicial District Court's intensive probation program is housed in the Liberto Building.